Where a tidal work is abandoned, or falls into decay, the Welsh Ministers may by notice in writing require the undertaker at its own expense either to repair and restore that work or any part, or to remove that work and restore the site to its proper condition, to such an extent and within such limits as the Welsh Ministers think proper.

Where a work consisting partly of a tidal work and partly of works on or over the land above the level of mean high water springs is abandoned or falls into decay and that part of the work on or over land above the level of mean high water springs is in such condition as to interfere or to cause reasonable apprehension that it may interfere with the right of navigation or other public rights over the foreshore, the Welsh Ministers may include that part of the work, or any portion of it, in any notice under this article.

If the undertaker fails to comply in any respect with a notice served under this article within the period of 30 days beginning with the date of service of the notice, the Welsh Ministers may take whatever steps the Welsh Ministers consider appropriate to achieve the result required by the notice; and any expenditure incurred by the Welsh Ministers is to be recoverable from the undertaker.